# Life Battery vs LifeTimer：寿命・人生の残り時間

The clearest difference is in-app purchases: LifeTimer：寿命・人生の残り時間 at none against Life Battery's 3. LifeTimer：寿命・人生の残り時間 also leads on iOS requirement (15.0 vs 18.0). Life Battery's advantage is update cadence (weekly vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. Life Battery sells 3 in-app purchases, starting at $1.99 per month. LifeTimer：寿命・人生の残り時間 asks for nothing beyond the download.

Life Battery ships an update weekly, LifeTimer：寿命・人生の残り時間 every 2 months. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Life Battery | LifeTimer：寿命・人生の残り時間 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/life-battery-time-left-clock/id6449723058/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Weekly** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 45 MB | 6 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ren Usuda](https://appshunter.io/developer/1682753243) | [Shogo Kasahara](https://appshunter.io/developer/6772166135) |

## What reviewers say

### Life Battery

[App page](https://appshunter.io/ios/app/life-battery-time-left-clock/id6449723058)

Visualize your remaining lifespan as a battery percentage. Set your birth date and estimated lifespan to see your remaining days. This app encourages mindfulness about life's finiteness and the importance of each day.

**Highlights:** Life remaining as battery percentage, Home Screen widget for quick view, Set birth date and ideal lifespan, Countdown of remaining days, Memento mori reminder

**Features:** macOS Compatibility, Vision Pro support, iPhone Duo support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $1.99 | per month |
| Premium | $5.99 | one-time |
| Premium (Supporter) | $14.99 | one-time |


### LifeTimer：寿命・人生の残り時間

[App page](https://appshunter.io/ios/app/lifetimer/id6788968900)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Life Battery free?

Life Battery is free to download, with in-app purchases available.

### Is LifeTimer：寿命・人生の残り時間 free?

LifeTimer：寿命・人生の残り時間 is free to download, with no in-app purchases.

### Do Life Battery or LifeTimer：寿命・人生の残り時間 have ads?

Both Life Battery and LifeTimer：寿命・人生の残り時間 show ads.

### Which is updated more often, Life Battery or LifeTimer：寿命・人生の残り時間?

Life Battery ships an update weekly, and LifeTimer：寿命・人生の残り時間 every 2 months. Most recently, Life Battery was updated on October 30, 2026 and LifeTimer：寿命・人生の残り時間 on October 28, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*